Abstract: In a digital computing system such as the Digital Equipment Corporation's VAX computer system which uses the VMS operating system in which terminal devices are connected to the system through terminal dependent device drivers coupled to terminal independent device drivers so that the operating system of the computer system need not be modified each time a terminal device is added or subtracted, a system and method is provided for effectively paralleling an auxiliary terminal with a selected terminal of the system so that the selected terminal can be monitored for instruction, security, audit, or other purposes, by creating a user controlling driver and a user controlling device coupled thereto, and coupling the user controlling driver and user controlling device combination between the terminal independent device driver and the terminal dependent device driver associated with the terminal device to be paralleled so that the output of the terminal independent device driver intended for the terminal dependent d